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About the Author: livescience

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  1. This happened to me today. First time in years that I’ve actually fallen. I stepped onto my shaded sidewalk this morning and my feet went right out from under me. Took me a minute to find my keys after they flew out of my hand. Luckily I didn’t hurt anything and no one saw me.

  2. The slipperiness of ice doesn’t stem from the pressure that is exerted on it. Even when using ice skates, the pressure isn’t high enough to melt the ice. If that were the case however, you would slowly sink into the ice when standing still and children would slip less than adults – both of which doesn’t actually happen.

    The reason for the slipperiness is a thin liquid layer that is formed by [Premelting](https://en.wikipedia.org/wiki/Premelting). This liquid layer is mobile and can flow, making you slip.

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